Superior Auto Repair & SEI Smog Testing Specialist

Auto repair shop

4.5 4.5 from 13 reviews

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Superior Auto Repair & SEI Smog Testing Specialist is a smog and emissions station in Upland, CA. It holds a 4.5 star rating from 13 customer reviews. Read the reviews and hours below, or call (909) 982-7272.

Photo from seiautocenter.com, this business's own website.

Services Offered

A/C installation & repairAir & cabin filter replacementAir conditioningAuto brake repairAuto emissions testingAuto engine diagnosticAuto engine tuningAuto exhaust system repairAuto glass repairAuto interior vacuumingAuto maintenanceBatteryBrakesCar waxingElectricalEngine repair

As listed on its Google Business Profile. Own it? Claim the listing to set your own list.

Address996 W 9th St, Upland, CA 91786

MapOpen the map →

Phone(909) 982-7272

Websitehttp://www.seiautocenter.com/

Also onGoogle Facebook

Good to knowWheelchair accessible entranceWheelchair accessible parkingOil changesRestroom

PaymentsCredit cards, Debit cards, Tap to pay

ASEASE certified technicians the shop's own website says so; ASE has no public lookup for individual technicians, so MechanicRank has not checked it

Hours

See the full week

Monday	8 AM to 4 PM
Tuesday	8 AM to 4 PM
Wednesday	8 AM to 4 PM
Thursday	8 AM to 4 PM
Friday	8 AM to 4 PM
Saturday	Closed
Sunday	Closed

Superior Auto Repair & SEI Smog Testing Specialist Reviews & Ratings

Customer reviews 4.5 4.5 · 13 reviewschecked 2026-09-14

5 star11

4 star0

3 star0

2 star1

1 star1

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What Car Repairs Cost in Upland, CA

Typical independent shop prices at California labor rates, parts and labor, for a midsize car. Each guide shows the price for your vehicle and what to ask before you pay. See all 91 repair cost guides.

Catalytic converter replacement cost $420 to $1,750 Oxygen sensor replacement cost $120 to $510 EVAP leak repair cost $140 to $740 EGR valve replacement cost $210 to $840 Purge valve replacement cost $110 to $460 Exhaust leak repair cost $150 to $690